Two thin concentric and coplanar spherical shells, of radii a and b `(bgta)` carry charges, q and Q, respectively. Find the magnitude of the electric field at a point distant x, from their common center for 3
(i) `0ltxlta` (ii) `alexltb` (iii) `blexltoo``blexltoo`

Three concentric conducting spherical shells of radii R, R2 and 3R carry charges Q,-2Q and 3Q, respectively compute the electric field at r = (5)/(2) R

Three concentric conducting spherical shells of radii R,2R carry charges Q, -2Q and 3Q, respectively. Find the electric potential at r = R and at r = 3 R, where r is the radii distance from the centre.

Two concentric conducting thin shells of radius R and 2 R carry charges +Q and +3Q respectively. The magnitude of electric field at a distance x outside and inside from the surface of outer sphere is same. Then the value of x is

Two concentric conducting thin shells of radius R and 2 R carry charges +Q and +3Q respectively. The magnitude of electric field at a distance x outside and inside from the surface of outer sphere is same. Then the value of x is

Two concentric spherical conducting shells of radii r and R (r lt R ) carry charges q and Q respectively . The two shells are now connected by a conducting wire. The final charge on the inner shell is

Two concentric sphericl shells of radii a and b (bgt a ) are uniformamly changed and carry equal changes q. Find the electric firld at a distance r from their common centre when (i) rlt a(ii)altrltb(iii) rgtr. [Hint: Draw coaxial cylindrical gaussion surface and appy Gauss thearem]